Electrical heater.



J. B. FEY.

ELECTRICAL HEATER. APPLIQATION FILED $313.11, 1910.

98%,@ Patented Apr. 18, 1911.

Uri 1 JOSEPH B. FIEY, F COLUMBUS, OHIO.

ELECTRCAL HEATER.

Specification of Letters Patent.

rai-@meu api. is, iini.

Application led February 11, 1910. Serial No. 5435527.

To all Iwhom 'it may concern:

' Be it known that l, Josiiri-i B. FEY, a citizen of the United States, residing at Columbus, inthe county of Franklin and State ot' Ohio, have invented certain new and useful Improvements in Electrical Heaters, of which the following is va specification, reference being had therein to the accompanying drawings.

This invention relates to electrical heaters and is designed more particularly for the purpose of heating a column of air as it passes through or is discharged from a conduit.

The 'object of the invention is to provide a heater ot this character which will be simple in its construction and of' such a character that the several parts thereof can be readily assembled after the manufacture of each part has been completed; and which will have a high degree of eiliciency.

To this end it is a further object ot t-he invention to provide a heatelr of this character having the heating coil arranged to be readily inserted in and removed .trom the casing; having contacty members carried by the casing and detachably connected tov the heating coil; having means for causing the air to circulate about the windings ot' the `heating coil; having'an adjustable discharge 'I nozzle; and having the several parts thereotl 'so constructed as to form a very simple compact heater which can be manufactured at a low cost.

- In the accompanying drawings, Figure l is a longitudinal, sectional view, taken centrally through a heater' embodying my invention; Fig. 2 is an end view ot' such a heater; Fig. 3 is a perspective view of the spool forming part of the heating-coil; Fig. 4 is a sectional, detail view of the detachable contact members; Fig 5 is a perspective view oia the detlector or spreading cone; Figs. 6 and 7 are. detail views of the discharge nozzle showing the different adjustments thereof; and Fig. 8 is a longitudinal, sectional View of a portion of the nozzle showing the saine attached to a massage cup.

In these drawings l have illustrated one embodiment of my inventionV and have shown the saine as comprising an outer cas ing having removably mounted therein a heating coilZ. The outer casing 1 may be .of any suitable material, such as aluminium. lt is preferably cylindrical in 'sha-peand has Yone end or head, 3, detach ably secured thereto. The other end or head, Ll, is preferably rigidly and permanently secured to the cylindrical walls of the casing. lnlet and outlet openings are formed in the opposite heads, and.r in the present instance, I have shown the inlet opening 5 as formed in the detachable head 3 and the outlet opening G formed in the fixed head 4. These openings are preferably arranged centrally in their respective heads and the inlet opening is shown a trifle larger than the outlet opening.r thus tending to pi'event the air passing from the casing too quickly after it has been discharged into ine saine. The detachable head 8 is provided `with means for securing thereto the air conduit which is here shown as a flexible tubing 7. This means preferably comprises a holl low boss 8 rigidly secured to t-he outer surface of the head 3 and extending about the inlet opening 5. This casing may, it desired., be provided with av suitable' lining S) of asbestos or other non-heat-conducting material. i

The heating coil 2 may be of any suitable character which will permit it to be inserted in and removed from the casing l.. I prefer, however, to constructthis caiil as herein shown. As here constructed it comprises a spool having its opposite ends or heads 10y and 11 connected one to the other by longitudinal rods 12 which are rigidly secured to the respective heads. These rods areV arranged in annular series and are spfaced some distance apart. Each head has a centrally arranged opening 18, which, when the coil is in position. will be in alinement with the inlet and outlet openings 5 and (i, rc-

spect-ively, and will permit the passage ot he air'V to and from the interiorof the coil.

A coil of resistance wire 14 is wound about the spool and the several windings thereof are spaced some distance apart to permit the free circulation ot the air about .the wires. rlhe wire 14 has both its ends connected to that end ot the spool adjacent to the Vinlet opening 5 and, as here shown, the ends of, the wire are connected to two hollow binding posts, each comprising a sleeve or bushing 15Y extending through thehead 11 and provided on one end with a head 16 and on the other end with a nut 17 whereby they end of the wire 14 may be passed about the sleeve and the nut then tightened down to bind it in position in the usual manner. These binding posts are, ot course, insulated one from ist -pre'tlentbl'v rigidly held in position in thc removable head o. extend tor some distance on cach side olf that head and are so arranged that, when the removable head is in position on the casing, the pins will extend into the respective hollow binding posts 15 and will tit snugly ivithin the same, therein` forming au electrical contact between the re istanc'e ivire lt and the pins. rEhe outer ends ot the pins are arranged to enter a connecting;- member. such as a plug itl by means ot which the),y are connected with the electrical conductors Ll. 'the pins 1S are prel'erabl)Y split at` both endsI to insure perlect contact. ltwill he apparent that by means olil thisl construction the head Il may be detached from the casing` and the contact pins 'vvithdran'n therewith7 and, inasn'mch as these contact pins term the only connections between the locating; coil and the easing Vthe coil may then be r adily removed from the casing. `When the heating` coil has been returned to the .casing it is a very simple matter to resinscrt the contact pins in the holloiv hinding'posts as the casinghead 23 is placed in positionou the casing. Thus, the heating coil ma)v he conipletelv nninntactured betore it is inserted in the casing' and it then a ve 'imple matter to mount the .saaie in the casing' and malte the necessiti?v electrical connections. li'hile the heath coil is connected to the caf ng onllv bv the contact pins it will be noted that the tit ot the coil n'ithin the casing is such that it has a verxv small amount ot uit `ment therein.

suitable discharge nozzle is prel'crabl)v .secured to that end ot the casing' opposi1V the detachable head which carriesl the inlet opening'. '"lfhis nozzle is here shown as compris-ine a lixed part rigiidl'tv secured to the fixed i i head el, and. in the present instance, on'n as lfornied integra therewith. 'this tiied part of the nozzle has a loneittnlinal opening tmn'i'. .E a conti-.tuatifm olf the outlet opening' (S in the head fl. \iounted on the outer end ot' the fixed portion a movable portion or cap i223 connected to the tixed portion bv a central pivot pin or screw rl`his cap has a longitudinal opening s3 into alinfnnent 1with the `dinal og'ienntej .in the fixed part ot the nozzle, and. .vhen in this position.y it is apparenti that the air r-:ill be discharged troia lon" esooo the Vinterior ot the casing in a straight jet. rl`he movable portion or cap Q?) of the nozzle has its side portion cut aivay near the inner end thereol to torm a recess Q6 between the outer surface oi the mo'valile portion and the end olf the fixed portion By rotating` the movable portion oi the nozzle about its; pivotal center the opening ivill be moved out et alinement with the opening` in the tixed portion ol the nozzle and the recess o brought into alinement with t/nis opening and the air discharge through the outlet opening will. intpine'e against the outer wall ot" the 'ecess and n'ill be discharged laterally therefrom. A, stop orpin 2T mounted in the end ot' the tired portion ot the nozzle serves as a stop to engage the rear chord-like Wall ot the lateral recess to limit the movement ot' the i'novahle part of the nozzle and to cause either the opening' or recess Qt to cooperate with the longitudinal opening in the fixed part o'lf'the nozzle. Thus, when the end ot the nozzle is inserted in a massagecup. as .shown at- QR, the air which discharged through the intera recessK itt will come inl contact with the walls otI the massan'wcup and will he discharged l'orujardly iu a s|' ra;v. l also prefer to provide a deflector h v .n'ieans of which the air entering the cas-ine' through the inlet may be caused to circulate about the coil7 and, to this end l. have mounted `:ithin the coil a cone-shuped spreader if) having' its apex arranged ad jacent to and in alinement With the opening 133 in the head 11 ot the spool formingY a part ot' the coil. Thus, the air entering through this opening will be split up by the conc and the diverging ivalls thereof ivili deflect the air toward the sides ot the casingl thus causingit to pass between the winding of the heatingv coil. and to circulate about the` same in such a manner as to become thor o o'hlv heated beiore it. is discharged trout casing, This del-lector may be supported tvithin the coil in an)v desired n'ianner, but 1 have here shoivn the saine as haring' an arm rigidl)r secured to one side thereot. extending lonnitudinath7 ot the coil and rigidly secured to the head 1l of the spool thereot.

rhe operation of theI device Awill be understood vliront the description of the several parts thereof and it will be apparent that the device as a ivhole is verv simple in its construction and possesses a high degree ot etiiciencv. being' so arranged as to cause the air to circulateabout a heatingT coil in such a manner as t0 perjinit it to be thoroughly heated `ivhile ivit'hin the casina: "l

K that the construction ot. the heater which pern'tits the 'ieatine' coil .to be readily removed trom and inserted Within the same and the separable contact pin enable the mainitacturcr of the several parts ot the device to be complet'cd and the device then assembled and all between Suid inlet and said outletj n die charge nozzle comprising n fixed parl having an openingin dlinenienf;v with Said ontle, :1nd a movable pnrt having' a longitudinal opening,` and a lateral recess. either of which may be moved into nlinenieni with the opennlff in he xed peri; of said nozzle.

ll. n n nener of the ehuraeler described, n easing having; an inlelA und :in outlet. n heating coil nihnnfed wihin Smid easing between said inlet :md Said outlet. n nozzle comprisingn ixed part having un 1 enii'1g forming n eon'iinwrion ol Suid outlet. n inovahle 'part inonned on said fixed pari and having` a laterally extending1 reeeee thereon adapted to he moved into alineinent with the opening in the fixed part of said nozzle, and n cup secured to smid nozzle and having its Walls extending` beyond Said lateral recess.

geene@ l2. ,ln n heater of the character described, n. easing' having' an inlet und an outlet :1nd having :1 removable head, a heating Coil reniovnhly inonnled Within said Casing; and having eongct melnliiers. Contact members Carried ,by sind removableA head and ar ranged to cooperate with the Contact memhere of Seid heniixg coil. n discharge nozzle Comprising n lixed parti having' nn opening forming n m'nninnnliivm of Suid outlet, and :in :nljnelnhle puri: having n longitudinal (mening and :l .lateral opening either of wliif-h nmy be moved into alinenient with :unid outlet'.

ln teetiinony whereof, I alix my Signature in presence' of tvvo Witnesses.

JOSEPH B. FEY. lllitnesses:

Il. l. llnixnsi-IAW, N. C. SMITH. 

